Improvement in steam-boilers



UNITED STATES PATENT OFFICE.

GREGOR MENZEL, OF MILWAUKEE, lVISCONSIN.

HVI PROVEMENT IN STEAM-BOILERS.

Speciiication forming part of Letters Patent No. 23,482, dated April 5, 1859.

To all whom, it may concern:

Be it known that I, GREGOR HENZEL, of Milwaukee, in the county of Milwaukee, in the State of Tisconsiin have invented a new and Improved Mode of Upright Steam-Boilers; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in the peculiar construction of an upright steamboiler, so that a small boiler will have a large capacity and consume very little fuel, so as to have the whole surface of the boiler heating and water surface, and by the manner the heat is conveyed through the ascending tubes E and descending tubes G, and then circulates around the blow-pipes A, cylinder m., and steam-dome L, so that the heat is consumed before it enters the chimney J, and the boiler being surrounded by jacket N, which protects it from the cold atmosphere, also in its construction being strong, durable, cheap, easy to clean, and safe.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

Figure l is a vertical cross-section through the center of the boiler. Fig. 2 is a front view of the boiler. Fig. 3 is a Vertical longitudinal section through the Center of the boiler. Fig. 4 is a horizontal section through the smokeboX of the boiler. Fig. 5 is a top view of the boiler. Fig. 6 is a horizontal section through man-hole and tubes of the boiler.

Letters A are a tier of cone blow-pipes at the bottom of the boiler, which pass through the iiue H, where the heat circulates around them, so that they warm the cold air which they conduct beneath the grate C, the blowpipes being made cone and put in incline, so that they will blow a sharp warm current of air beneath the grate.

B is the aslrpan.

C is the grate.

D is the furnace or tire-box, in which the fuel is consumed.

Letters F. are the ascending tubes, which convey the smoke and heatfrom the iirebox D up into smoke-box F.

Letters G are the descending tubes, which convey the smoke and heat from F down into flue H to heat the blow-pipes A. Then the smoke and heat return up through flue I, which is formed around the cylinder m and the largest part of the steam-dome L, into the chimney J.

Letters K are the circulation-pipes, which hang loose in the boiler, so that they cannot freeze in cold weather. The upper end of the pipes forms an elbow, which rest on the bottom of steam-dome L, so that all the water that foams from the boiler in the steam-dome L can return down into the bottom of the boiler, as otherwise the current of steam which passes from the boiler through the openings T in the steam-deine L will not allow it to return in the boiler.

L is the steam-dome which is on the top of the boiler, and receives all the steam from the openings T which the boiler produces.

Letters M are protection-plates, which protect the connections S from the heat which is in the smoke-box F.

Letter N is the jacket, which surrounds the whole boiler and the largest part of the steamdome L, and protects them from the cold ate mosphere, and forms the iiue I for the heat to circulate around them.

O is the foundation for the whole boiler jacket and grate. It also supports the blowpipes A and the damper-slides U.

Lett-er P is the roust-hole, which is used to put the poker through to stir up the iire.

Letters Q are man-holes, which are used to get inside of the cylinder mand the steamdome L.

Letter R is the furnace-door, which is used to put the fuel into the furnace D.

Letters S are the connecting-pipes, which connect the steam-dome L with the boiler and form the openings T.

Letters T are the openings through which the steam passes from the cylinder m into the steam-dome L.

Letters U are the damperslidee, which are used to regulate the air that passes through the blow-pipes A. Y

Letters V is a connecting branch pipe, which connects the blowoif cock and check-valve to the bottom of the boiler.

WV is a brace which is riveted to the cente; of the tube plates Z and h, so as to take the strain from the tubes E, which also answers tire-box cannot collapse under a heavy press-v ure of steam.

c is a Water-conductor tor the gage-cocks a.

Letters d are the hand-holes in cylinder m, which are used to clean the mud out of the boiler.

Letters e are doors in jacket N, which lead to the hand-holes d.

Letters f are connecting-pipes on the top of the steamedome L, to which the steam-pipe and safety-valve are connected.

h is a hook to hold the circulation-pipes together.v

c' is a center brace to connect the cover Y and steam-dome L, so as to keep the cover Y from bending.

Y is the cover for smoke-box F, Which is in sections, so that it can be taken oft' to clean out the tubes E and G.

k is the upper tube-plate.

l is the tire-box tube-plate.

fm. is the cylinder of the'boiler.

n is the door which leads into the flue H, which is used to clean out ashes Which collect from the descending tubes G.

Letters y are large doors in the jacket N, which lead to cover Y and smoke-box F, so as to clean out the tubes E andvG. The products of combustion pass upward from the grate C in lire-box D through ascending tubes E and center brace-il ue, W, into the smokebox F, and then down through descending tubes G in the bottom iue, H, from whence they rise through i'lue I to the chimney J.

I do not claim irrespective of the arrangement I have described the employment of ascendingl and descending tubes, may be seen in the Withdrawn applications of Thomas Greer October, 1847, and Thomas E. Warren July 19, 1852; but the arrangements of tubes and parts therewith connected in the above examples are quite diierent from mine.

I claiml. The arrangement, in an upright cylindrical boiler, of a {ire-box, D, and series of ascendn ing tubes E, a smoke-box, F, a single or double circle of descending tubes, G, a iue, I-I, and Hue I, in combination with jacket N, Without or With horizontal steam-dome L, as shown and described.

2. I do not claim, irrespective, a circulationpipe for an upright boiler; but I claim the arrangement of my circulation-pipes K, which hang loose, and inside the cylinder m, openings T, and steam-dome L, in the manner shown and described. l

GREGOR MENZEL.

Witnesses:

I. Y. BURNHAM,

CHAs. C. MAYER. 

